Type-writing machine



(No Model.)

4 Sheets-Sheet A. VON BRANDIS.

TYPE WRITING MACHINE.

Patented Feb. 4, 1890.A

(No Model.) 4 Sheets-Sheet?.

A. VON BRANDIS.

TYPE WRITING MACHINE. No. 420,843. Patented Feb. 4, 1890.

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@V/meme@ I 4 Sheets;Sheet 4. A. VON BRA-NDIS. TYPE WRITING MACHINE.

(No Model.)

No. 420,843. Patented Peb. 4, 1890.

UNITED STATES PATENT OEEICE.

ADOLPI-I VON BRANDIS, OF MILVAUKEE, IISCONSIN.

TYPE-WRITING MACHINE.

SPECIFICATION forming part of Letters Patent No. 420,843, dated February4, 1890.

Application iled October ll, 1888. Serial No. 287,836. (No model.)

To @ZZ whom, it may concern:

Be it known that LADOLPH VON BEANDIs,

i ot' Milwaukee, in the county of Milwaukee,

and in the State of Visconsin, have invented certain new and usefulImprovements in Type-Vriting Machines; and I do hereby declare that thefollowing is a full, clear, and exact description thereof.

My invention relates to type-writers; and it consists in certainpeculiarities of construetion and combination of parts, to behereinafter described with reference to the aecompanying drawings, andsubsequently claimed.

In the drawings, Figure l represents a plan view of a type-writerconstructed according to my invention; Fig. 2, a vertical longitudinalsection of the same; Fig. 3, an elevation of the rear end of themachine; Fig. 4, a vertical transverse section taken on line 4 4 of Fig.2 Figs. 5 and G, detail views of a cylinder and clamp that form parts ofmy device; Fig. 7, a plan view of a type-nest employed in'my machine;Figs. 8 to 1l, inclusive, detail views of the type-nest5Fig. l2, adetail section taken on line 12 l2, Fig.' 2; and Fig. 13, a similar viewtaken on line 13 13, same figure.

Referring by letter to the drawings, A represents the base of my device,and se cured to this base are vertical rear and front standards B C,havingv their upper ends connected by X and V shaped braces D E with thecorresponding ends of posts F, that project upward from opposite sidesof said base. A horizontal shaft G has one of its bearings in' thestandardB and another bearing in a sleeve H, that is provided upon itsexterior .with a series of parallel cam-grooves and supported by saidshaft, said sleeve being also socketed in the standard C, where it isheld against possible rotation by means of set-screws b (bestillustratedin Fig. 4) or other suitable means. Between the standard B andcam-grooved sleeve H the horizontal shaft G is provided with radialwings c, that may be in the form of a plate to partially encircle saidshaft and extend equally in opposite directions, as best illustrated byFig. l2, said plate being secured 1n place by means of rivets, screws,or other suitable means. The shaft G and its radial wings c pass throughthe rear head d of a vparallel to each other.

a spring-dog J, that is designed to engage the -cam-grooves on saidsleeve, whereby the rotation of the shaft G will cause an automaticlongitudinal movement of said cylinder at predetermined intervals. Bywithdrawing the dog .I from engagement with the sleeve H the cylinder Ican readily be moved back and forth at the pleasure of the operator.

Vhen the dog J is in engagement with the sleeve Il, the intermittentforward movement of the cylinder I arises from the fact that certainparallel portions g of said groove are at right angles to thelongitudinal axis of said Sleeve for the distance of three hundreddegrees, (more or less,) while the remaining portions 7L are at obtuseangles to those g for the distance of sixty degrees (more or less) andBy the above construction it will be seen that at each revolution of thecylinder I the dog J will be for a certain time rotated on a true circleand then move on an oblique, this latter movement causing said cylinderto advance the predetermined distance, the latter being equal to thedistance that each portion 7?. of the spiral groove obliques from a lineparallel to the axis of the shell II.

The cylinder I is preferably provided with a rubber or other elasticcovering i and a detachable plate K, the latter serving as a clamp n forpaper placed on said cylinder'. As best illustrated in Figs. 5 and 6,the clampingplate K is provided at one end with a lug j, that (its anopening in the rear head CZ ofthe cylinder I, and is held in place by aspringlatch 7c, secured to the forward head e of said cylinder andarranged to overlap the adj aeent end of said clamping-plate.

Secured to the rearstandard B and one o the posts F is a horizontal barL, on which fis arranged a sleeve M, the latter havin-g pivoted theretoa spring thumb-piece N, bifureated at its inner end to normally engagethe `projecting rim of the cylinder-head el, whereby'said sleeve iscarried along on the bar by the inder I.

ICO

termittent forward movement of the cylin- Fast on one of the posts F isthe stem of an alarm-bell B, arranged to be struck by a hammer on alever B2 the latter beinOt controlled by a spring B3 and pivoted at oneend to the bell-stem. The free end of the lever B2 is in the path of thethumb-piece N on the sleeve M, and is actuated against the force of thespring B3 to bring the hammer on said lever away from the bell B atapredetermined interval. After the thumb-piece N passes out of contactwith the lever B2 the latter is suddenly returned to its normal positionby the contraction of the spring B3 and the bell B' struck by the hammeron said lever to indicate that the cylinder I has nearly completed itstravel in a forward direction.

I do not Wish to be understood as confining myself to the alarmmechanism shown and described, as there are various forms of suchmechanisms that may be as readily employed.

Fast on the shaft G near its rearend is a ratchet-Wheel O, and engagingthis ratchetwheel is a pawl I, pivoted to an arm m on a wheel Q, thelatter being loose on said shaft and oscillated by hand to actuate thepawl.`

The throw of the pawl P is regulated by means of set-screws n, that havetheir bearings in lugs p on the standard B and are arranged to opposethe arm m on the handwheel Q, as best illustrated in Fig. 3. Therotation of the ratchet-wheel actuates the shaft-G and the cylinder Landto prevent reverse movement of these parts a detent q is pivoted to thestandard B and held in engagement with the ratchet-wheel O by means of aspring Ir, secured to the foot of said standard.

VA ratchetavheel R is fast on the forward end of the shaft G and isengaged by a pawl s, depending from a lever S, the latter beingfulcrumed to brackets that project from the front standard C of themachine, said lever being retained in its normal position by means of aspring t,the tension of this spring being regulated by a set-serew u,that has its bearing in a lug fr, projecting forward from said standard.The lever S extends back toward the rear of the machine and terminatesin a head or hammer w, and, while this head or hammer may serve everypurpose,I prefer to employ another hammer 03, arranged directly underthe one w and having a springextension y, that is secured to the underside of said lever near its forward end. The spring-extension Iy of thehammertI is rigidly connected to a slotted weight T, and through theslot in this weight I pass the lever S, as best illustrated in Fig. 2.

Then the wheel R is rotated, the pawl s is lifted by the rise of theratchet-teeth on said wheel, thereby raising the lever S, the latterdropping again as it passes out of contact with each tooth. Thespring-extension g/ of the hammer a' is carried up with the lever S, andwhen the latter falls to its normal position the momentum acquired bythis movement and the weight T will overcome the resistance of saidspring-extensiomwhereby said hammer will have a more rapid downwardmovement against the type-bars, to be hereinafter described, than wouldbe the ease with a stilf hammer. This movement having been accomplished,the spring y returns the hammer' r to its normal position and vibrationceases.

By reference to Fig. 4 it will be seen that for a certain distance thereare no ratchetteeth on the wheel R, and for this distance the plane ofsaid Wheel is on the circle of the lowest points of said ratchet-teeth,the result of this construction being that for a certain time there isno elevation of the pawl s, and consequently no movement of the lever S.This cessation of movement on the part of said lever agrees with theintermittent forward propulsion of the cylinder I, thereby preventingany stroke of the hammer or hammers w while the latter operation istaking place.

Depending from the X-sha-ped brace D are brackets s, that support aflanged plate U, the latter being centrally provided with a step a for avertical shaft lV, and fast on this shaft is the hub b of a wheel X,said hub having its bearin g in the X-shaped brace l). The upper end ofthe shaft W is provided with a hand-nut c', or, if found desirable, ahand-wheel may be substituted.

Fast on the lower portion of the shaft W is a flanged plate Y, having adepending annulus d', provided with an annular channel e and a series ofvertical serrations f, as best illustrated by the detail, Figs. 8 and 9.Clamped to the annulus d by means of screws g or other suitable means isanother annulus h, that is also provided with an annular channel t', thelatter being in register with the one e in said annulus d', and, as bestillustrated by Fig. S, that portion of the annulus 71.' that extendsoutward from the channel t" is beveled. The flange on the plate Y isprovided with a series of serra-tions j', that register with theseri-ations j" in the annulus CZ', that depends from said plate, whilethe opposing flange on the stationary plate U is provided with a slotlc', as best illustrated in Fig. 10.

Confined within the space formed by the channels e t" in the annuli d hare the circular inner ends m of type-bars Z, that extend outwardthrough the serrations f j in the annulus cl and flanged plate Y, asbest illustrated in Figs. 2 and 7.

The flange on the plate U and a spring n hold the type-bars Z in theirnormal or raised position, and by rotating the shaft any one of thesebars may be brought into register with the slot k in the flange on saidplate. Then a type-bar is in the position just described, its outer endwill be immediately under the hammer, and the blow of the latter willdrive said outer end of thc typcsbar down against a ribbon 1J', that isshown as IOO IIO

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arranged on'horizontal lingers q', that project from the posts F; butany 'suitable ribbon-support may take the place of said iingers. Theslot 7c in the flange on the plate U permits the descent of a type-barstruck by the hammer, and thus an impressionis had upon the paper on thecylinder I, the

- spring n causing the return of said type-bar to its normal positionafter being acted upon by said hammer.

A circular block A is secured to the X- shaped brace D and lsurroundsthe wheel X, the latter being provided with one or a series of pointers,as best illustrated in Fig. l, and marked l 2 3.` Each of the pointerscorresponds to a certain group of type-bars Z, and each of these barshas its corresponding charj acter indicated on the circular block. Asshown by Fig. l, there are three sets of characters on the block A; butit is obvious that the numberV of characters and their correspondingtype-bars may be indefinitely multiplied, there being aseparate set ofsaidbharacters for each group of said type-bars.

Between each group of the type-barsl prefer to have a space equal tothedistance caused by the omission' of at least one of such bars, and everytime the pointer that corresponds with any particular group is broughtto the starting or iinishingpoint of thecorresponding set of charactersone of the 'spaces' between the groups of type-bars will be unn der thehammer, and consequently there will be nothing for'the latter to strike.When the parts are in the position just described, there will be no.impressionmade upon the paper while the cylinder I is being rotated,and thus anydesirable length of space maybe obtained between characters,words, &e., printed on said paper.

In the operation of my machine the wheel X is worked with one hand tobring any one of the pointers to a point corresponding with a characterin the set that relates to said pointer and a rcorresponding group oftypebars, while with the'other hand the wheel Q is actuated to rotatethe cylinder I and cause the hammer to strike the type-bar that has beenbrought into register with the slot k in the flange on the stationaryplate U.

Having `thus fully described my invention, what I claim as new, anddesire to secure by Letters Patent, is-

1. In a type-writer, the combination of a rotative paper-carriageintermittently pro` pelled in a forward direction, a stationary bar,

. a sleeve loose on the bar, a thumb-piece pivoted to the sleeve andprovided with a bifurcated end for engagement with a projecting rim ofthe carriage, and au alarm mechanism actuated by said thumb-piece,substantially as set forth. Y

2. In a type-writer, the combination of a lever, a hammer provided witha springentension secured to the lever, a slottedweight attached to thespring-extension and arranged to embrace said lever, and means, substantially as described, for actuating the latter, as set forth.

3. In a type-writer, the combination of an intermittently 4 rotatedpaper carriage pro? pelled at predetermined intervals in a forwarddirection at right angles to its rotation, a rotary adjustabletype-nest, a fulcrumed hammer arranged to strike the type, a pawlconnected to the hammer, a mutilated ratchet-wheel rotated with thepaper-carriage and arranged to engagethe pawl, and means, substantiallyVas described, for actuating the paper-carriage and ratchet-wheel, as setforth.

4. In a type-writer, the combination of a shaft', a stationary sleevesurrounding the same and provided with a series of camgrooves, acylindrical paper-carriage revoluble with the shaft, a dog connectingthe carriage and Ycam-grooves on the sleeve, a hammer provided with adepending pawl, a ratchet-wheel arranged on the shaftito engage ,the

pawl, and a mechanism for actuating saidk same and provided with aseries of cam,-`

grooves, a cylindrical paper-carriage revoluble with the shaft, a dogconnecting the carriage, with the'cam-grooves on the sleeve, a

rotary adjustable nest of type-bars, a lever IOO carryingV a hammerarranged to strike the type-bars at thei printing-point and providedwith a pawl, a ratchet-wheel arranged on the shaft to engage theylever-pawl, and aY mechanism for actuating said shaft, substantially asset forth.

7. In a typewriter,'the combinationofka shaft, a stationary sleevesurrounding the same and provided with a series of A camgrooves, acylindrical paper-carriage revoluble with the shaft, a dog connectingthe car- I riage with the cam-grooves on the sleeve,a hammer having apawl-and-ratchet connection witlr the shaft, a ratchet-wheel faston theshaft, a hand-wheel looseA 011 said shaft and provided with apawltovengage the ratchet-wheel, and a detent for thelatter-,substantially as set forth.

In testimony that I claim the foregoingl have hereunto set my hand, atMilwaukee, in

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the county of Milwaukee and State of consimin the presenceoftwowitnesses.v f ADOLPH VON BRANDIS. lVitnesses:

N. E. OLIPHANT, 'WrLLrAM KLUG.

